Folding paperboard box



Patented Jan. 21, 1947 STATES FOLDING rarnanoann BOX William Glenelg Palmer, Ilchester, Md assignor tfimThe Bartgls Brothers Company, llchester,

' Application May 14, 1943, Serial No. 486,936

1 Claim.

This invention pertains to containers and more particularly to folding paperboard boxes used for holding garments for transportation and delivery purposes. It has among its objects to provide a box ioldable from a blank of paperboard or material qpasi-flexible enough to be bent and retain its form, yet allowing movements and flexing of portions sumcient to permit its sides to be engaged and disengaged readily. Another object is to use a construction that will avoid the use of staples or other metal fasteners to keep overlapping portions of the sides closed securely. A further object is to have a box of this kind which has its corner portions formed to bend very readily without reducing itsefiective stillness when the blank is folded into a box.

Qther objects will become apparent as the invention is more fully described.

In the drawing which illustrates an example of a device exemplifying this invention:

Figure 1 is a plan view of a blank ofa folding paperboard box embodying this invention, and

Figure 2 is a perspective end view of one-half of a box, in closed position.

Similar reference characters refer to similar parts throughout the drawing.

The previous forms of foldable boxes used in the past have had their corner pieces without cuts in the material where the material is bent. This arrangement bends with difliculty and cannot be closed tightly. In this invention, the corners bend readily by reason of a perforated crease arrangement, and the fact that a cut is made from the edge inwardly as described. The folded 'side portions serve to close tightly and make the box stiff and rigid and otherwise strengthen it. The

out portion facilitates the insertion of the parts under one another and can be utilized to reinforce the locking action of the bent over portions of the blank. No staples or the like are required and are avoided to keep points and sharp metal points from injuring the garments placed in the box for transportation.

. the creases 2 terminate at the edges 1 of the sides or walls 3, as indicated. The creases follow diagonal directions from the corners 8 of the blank, but stop spaced therefrom. The collar portions 9 of the blank are out with a tab III that is cut therefrom along the lines II with semi-circular-slot portions l2 formed therein, at the ter- 2 mini of the lines. The tabs ID are glued in place flat against the inside faces of the sides or walls 3, leaving the collar portions 9, due to the cuts ll, flexible enough to allow the bent comer squares of the blank, folded as indicated in the drawing, to be inserted under them. The insertion of the bent-up corner squares, under the collars enable the latter to hold the double-thick square tightly. Before insertion the sides are vertically brought up against one another. The extending portions 03 with the apexed triangular forms areunfoided and only of one thickness. This permits the portions of folding collar near the tabs to be affected by less stresses than at the corners and with less chance (of. being torn during the insertion. The semi-circular cuts increase this facility. The'extending portions l3 have a portion 2b which may be bent up to further lock the corner pieces if desirable. A tongue 2| is extended from each side of each collar for inrated creases 2 and form a V-like structure that bends inwardly into the box and brings the sides 3 and t into a vertical position. This causes the corner square to bend on the crease lines and it. The portions ll of the square near the top edge are inserted under the collar and align up with their edges l9 close to the edges l8. This stiflfens the whole length of the side at the ends of the box. The triangular pieces 20 project from under the collar edges and can be bent upwardly.

The corners of the box are particularly strong and take up the stresses of pulling arising from the sides 3 and 4 in a very efiectual manner.

The tongues 2|, extend through the slots 22 and tend to keep the sides more rigid.

While the blank described refers only to one half of the box, it is understood that the other half that it covers or closes on is similar or may be that of a conventional bottom. This being the case, it is not deemed necessary to describe the other portion herein.

While but one form of construction of the invention is shown in the drawing and described in the specification, it is not desired to limit this application to such specific form or in any other way otherwise than limited by the principles outlined and the scope of the appended claim.

Having thus described the invention, what is claimed is:

A iolding box formed from a blank 01 cardboard or the like comprising a bottom having a pair of upstanding side portions hingedly connected thereto, end portions connected by square corners to said side portions and hingedly connected to said bottom. said corners provided with e 4 J diagonal perforated crease lines, said crease lines terminating in slits positioned in a diagonal manner and reverse to the first mentioned diagonal crease lines, said end portions having collars hingedly connected thereto, said collars being provided with tabs formed by means 01' slots placed therein, said tabs being coated on their under sides with an adhesive and amxed to the said end portion.

WILLIAM GLENELG PALMER. 

